沖(chong)(chong)孔封(feng)頭(tou)(tou)：由一個(ge)或多個(ge)孔沖(chong)(chong)壓成形的封(feng)頭(tou)(tou)。沖(chong)(chong)孔封(feng)頭(tou)(tou)也有橢圓形沖(chong)(chong)孔封(feng)頭(tou)(tou)、平底沖(chong)(chong)孔封(feng)頭(tou)(tou)、蝶形沖(chong)(chong)孔封(feng)頭(tou)(tou)、無直邊沖(chong)(chong)孔封(feng)頭(tou)(tou)等！

一般沖孔封頭多用(yong)(yong)于(yu)各種設備過濾使(shi)用(yong)(yong)。而孔的(de)大(da)小，距離均可按要求(qiu)來定做(zuo)。